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Low-Temperature Fabrication of Alkali Metal–Organic Charge Transfer Complexes on Cotton Textile for Optoelectronics and Gas Sensing

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journal contribution
posted on 03.02.2015, 00:00 by Rajesh Ramanathan, Sumeet Walia, Ahmad Esmaielzadeh Kandjani, Sivacarendran Balendran, Mahsa Mohammadtaheri, Suresh Kumar Bhargava, Kourosh Kalantar-zadeh, Vipul Bansal
A generalized low-temperature approach for fabricating high aspect ratio nanorod arrays of alkali metal–TCNQ (7,7,8,8-tetracyanoquinodimethane) charge transfer complexes at 140 °C is demonstrated. This facile approach overcomes the current limitation associated with fabrication of alkali metal–TCNQ complexes that are based on physical vapor deposition processes and typically require an excess of 800 °C. The compatibility of soft substrates with the proposed low-temperature route allows direct fabrication of NaTCNQ and LiTCNQ nanoarrays on individual cotton threads interwoven within the 3D matrix of textiles. The applicability of these textile-supported TCNQ-based organic charge transfer complexes toward optoelectronics and gas sensing applications is established.